Pipe-drawing apparatus



No Model.)

J. H. MATHESON. PIPE DRAWING APPARATUS.

N0. 600,382. Patented Ma1".8,1898.

UNTTn STATES PATENT JAMES H. MATHESON, MIDDLETOWN, PENNSYLVANIA.

PIPE-DRAWING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 600,332, dated March 8, `1898.

Application filed July 28,1897. Serial No. 646,254. (No model.)

T0 (LM whom it may concern:

Be it known that I, JAMES H. MATHEsoN, a citizen of the United States, residing at Middletown, Dauphin county, Pennsylvania, have invented certain new and useful Improvements in Pipe-Drawing Apparatus, of which the following is a specification.

This invention pertains to pipe-drawin g apparatus employed in drawing iron pipe; and the improvements will be readily understood from the following description, taken in connection with the accompanying drawings, in which- Figure 1 is a side elevation of a pipe-drawing apparatus exemplifying my invention, the front portion of the heating-furnace appearing in vertical longitudinal section, while Fig. 2 is a front elevation of the carriage, its claw, and guide-beam.

In the drawings, 1 indicates the front wall of the usual skelp-heating furnace; 2, the hearth thereof, of such usual width as to permit a number of skelps to lie thereon side by side while being heated; 3, the usual doorway in the front wall of the furnace, through which the skelps are to be withdrawn; 4, a beam supported overhead in front of the furnace and in line with the length of the furnace; overhead hangers rigidly supported at each end of the beam; 6, a trunnion orjournal at each end of the beam, these journals taking their bearings in the hangers 5, and thus permitting the beam to be rotated; 7, a worm-wheel fast upon one of the journals of the beam; 8, a worm mounted in suitable bearings for engagement with the wormwheel; 9, a sprocket-wheel on the shaft of the worm 5 10, an endless hand-chain hanging from the sprocket-wheel; 11, a carriage arranged for longitudinal movement upon beam 4; 12, an arm projecting rigidly downward from carriage 11 13, a claw on the lower end of the arm 12, adapted to engage with the tag, tongs, or other implement employed in grasping the skelp and withdrawing it from the furnace; 14, an arm projecting rigidly downward from the rear end of beam 4; 15, a claw on the lower end of arm 14, this claw being similar in character to claw 13, butbeing intended to serve as a holder for the die or bell through which the skelp is to be drawn; 16, a second die-holding claw carried by arm 14, forward of claw 15, the three claws 13, 15, and 16 being in line with each other; 17, the drawing rope or chain for giving longitudinal motion to carriage 11 upon beam 4, the arrangement being merely exemplifying in character and being such as is common in connection with draw-benches for pipeworlr; and 18, an eX- emplifying driving-shaft for giving motion to rope 17, such shaft to be driven by power in either direction of rotation, at will, as is common in draw-benches.

In using the apparatus the hand-chain 10 is operated to so rotate beam 4as to move the claws transversely and into line with the first skelp to be dealt with, the carriage 11 being at the time at the rear end of the beam-that is to say, near the furnace. The tag or tongs being connected with the selected skelp in the furnace and having the bell or bells slipped over it is now to be properly laid in the claws, whereupon carriage 11 is to be caused to move away from the furnace, claw 13 thus drawing1 the skelp through the bell or bells, which take position in the bell-holding claws. When the skelp has been completely drawn through the bell or bells, the tag or tongs are to be disengaged from claw 13, and carriage 11 is to move again toward the furnace. The hand-chain is then to be operated to bring the claws in line with the second skelp, which skelp is to be drawn in the manner above described. In this manner the claws are to be moved into line with the skelps successively, fresh skelps going into the furnace to replace those drawn out, the claws being moved into line with the first skelp after the entire series of skelps has been dealt with, so that the operation may be begun again at the first skelp of the series.

The illustrated devices for giving longitudinal motion to the carriage and for rotating the beam are merely exemplifying `in character.

I claim as my invention- In pipe-drawing apparatus, the combination, substantially as set forth, of a guidebeam disposed overhead in front of a heatingfurnace and supported on journals so as to be IOO capable of rotation, an arm projecting rigidly ried by the lower extremity of said last-men-l downward from the end of the beam near the tioned arm in line with said die-holder or bellfurnace-front, a die-holder or bell-holder earholder.

ried at the lower extremtyof said arm, agear- J AMES H. MATHESON. 5 riage arranged for longitudinal movement on Witnesses:

said guide-beam, an arm projecting rigidly CHAS. H. HOLLINGER,

downward from said carriage, and a Claw ear- JOHN T. BUTLER. 

